Nut-locking device



T. A. GANNON.

NUT LOCKING DEVICE.

APPLICATION FILED MAR. 23. 1921.

1L ,4@3,312 Patented Jan. 111] 1922,

NUT-LOCKING DEVICE.

Application filed March 23, 1921.

To all 207mm it may concern:

lie it known that l TIMOTHY ALoYsIUs (:ANNoN, a citizen of the United States residing at 138 Sycamore Street, i oomeirville in the county of Middlesex and State of lllassachusetts, have invented a new and useful ilutLocliing Device, of which the fol lowing is a specification.

My invention relates to improvements in nut-locks in which a split-ring of spring material operates in conjunction with bolt on which it is afiixed: and the objects of my improvement are, first, to provide a means of preventing; a not from loosening; or becoming unscrewed after it has been adjusted: second, to provide a means or" looking a nut vithout inj ring nut or bolt; and, third, to provide a nut-lock that may be readily attached or detached.

I attain these objects by the mechanism illustrated in the accompanying drawing in which lfiiguro 'l. is a view in perspective of the entire device; Figure 2 a view perspective of device as it appears adjusted in working position on bolt.

Similar numerals refer to similar parts throughout the several views.

The split-ring (1) beingconstructed of spring material and having a series of grooves running diagonally across its inner si face (as shown in Fig. 1.) constitutes the entire device.

The method 0'! applying my improvement is as follows:

The split-ring (1) is sprung apart at its ends (a which causes the diameter of Specification of Letters Patent. Patented Jan, 141% 1%)22;

Serial No. 454,704.

split-ring (l) to be enlarged and admits of its being passed over projecting end of bolt and thence along bolt and placed close against side of nut (3) which has been adjusted on bolt The ends (l5) of split-ring are then allowed to spring back into normal position causing the series of sharp projecting edges (produced on inner surface of split-ring (1) by the diagonalgrooves, before mentioned) to be brought in contact with, and to grip the threaded surface of bolt (2), thus causing splitring (l) to become rigid on bolt (2) and thereby prevent nut (3) from becoming unscrewed.

The grooves and edges on inner surface oi" split-ring- (1) are made to run diagonally across inner surface of split-ring (1) in order that they may resist any pressure on split-ring (1) which would tend to volve it on bolt (2) or to slide it along bolt I am aware that prior to my invention, nut-locks have been made in which a splitring of spring material has been used, 1 therefore do not claim such a combination broadly: but

I claim In a nut-lock, a splitring of spring material having its inner surface provided with a series of sharp projecting ridges extending diagonally across said inner surface, said sharp projecting ridges adapted to grip the ridge ofthreaded surface of bolt on which it is aflixed.

TIMOTHY ALOYSIUS cannon. 

